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Musk: serving Grok Bot was 'unsustainably high relative to revenue' as paying users hit weekly limits days early

What's the deal? On 1 November an X user asked Elon Musk whether Grok Bot's weekly usage could be reset, saying many subscribers had run out unusually fast. Musk replied 23 minutes later: "The cost of serving Grok Bot was unsustainably high relative to revenue." He gave no cost or revenue figures and did not say whether limits had been cut or would be reset. The reply passed 6.7 million views. Grok Bot is the AI agent from xAI, now part of SpaceXSI, launched in early beta in August; it runs tasks on its own virtual computer and is sold through SuperGrok and Cursor plans starting at $30 a month.

Bug or new limits? On Cursor's forum, users described weekly meters jumping towards 100% overnight with no matching activity. A Cursor staff member called that a fault, put the spike at about 04:10 to 04:20 UTC on 1 November, and pointed to a status-page incident affecting the billing and usage dashboard, marked resolved later that morning, Mad Robot reported. According to IBTimes, Grok's official account attributed the changes to adjusted allocations because of high serving costs, and separately described a resolved dashboard problem that had shown inaccurate readings without affecting actual metering.

Two weeks earlier: On 15 October Musk posted that he had "never seen anything grow as fast" as Grok Bot, adding that with no free tier "people are deriving real value in excess of what they pay". Developer Benjamin De Kraker put the two posts side by side: "Two weeks ago Grok Bot was an incredible success story powering SpaceXai's revenue growth. Now it's unsustainable and loses money (???)"

The signal: AI agents that work in the background burn far more compute than chat. AI bosses rarely say publicly that a flagship product costs too much to serve for what it earns, and pricing agents profitably is now an open question for every AI lab.

Read more: Elon Musk (X), Mad Robot, Anadolu Agency, IBTimes, Benjamin De Kraker (X)

Image credit: Mad Robot

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